Françoise Marie de Bourbon, légitimée de France (4 May 1677 – 1 February 1749) was the youngest illegitimate daughter of Louis XIV of France and his maîtresse-en-titre, Françoise-Athénaïs, marquise de Montespan. At the age of 14 she was wed to her first cousin Philippe d'Orléans, future regent of France during the minority of Louis XV. Through four of the eight children she bore him in an unhappy marriage she became the ancestress of several of Europe's Roman Catholic monarchs of the 19th and 20th centuries, notably those of Belgium, Italy, Spain and France.